Combined fuel and air valve.



COMBiNED FUEL AND AIR VALVE.

APPLICATION FILED 050 28. 3911.

l JZQQQQ. I Patented Apr. 8, 1919.

2 SHEETSSHEET'I.

INVENTOR G.- F. BlBB.

COMBINED FUELVAND AIR VALVE.

' APPLICAHON FILED DEC-28,1917.

PatentedApr. 8, 1919. 2 $HEET$$HEET 2 roe/ms GEORGE F. IBIBB, OF TROY, NEW YORK.

COMBINED FUEL AND AIR VALVE.

Specification of Letters Patent.

Patented Apr. 8, 1919.

Application filed December 28, 1917. Serial No. 209,213.

To all whom'z't may concern:

, Be it known that I, GEORGE F. BIBB, a citizen of the United States, residing at Troy, in thecounty of Rensselaer, State of New York, have invented a new and useful Combined Fuel and Air Valve, of which the following is a specification.

My invention relates to burners of the type which are adapted to burn gaseous or liquid fuel.

In its broad and generic scope, it consists of a novel construction and arrangement of elements to provide the proper mixture of air and gas atany degree of opening of the fuel valve, thereby enabling one to obtain substantially perfect combustion at all times and also to eliminate the likelihood of a flareback. To obtainthese results, the body portionof the burner, the valve seat, the air valve and the ports which it controls are constructed in a novel manner and the air valve is operatively connected with the fuel valve to move in unison with it.

Other novel features of construction and advantage will hereinafter more clearly apv pear in the detailed description.

For the purpose of illustrating my invention, I have shown in the accompanying drawings, typical embodiments of it which are at present preferred by me, since, these embodiments will give in practice satisfactory and reliable results, although it is to be understood that the various instrumentalities of which my invention consists can be variously arranged andorganized and that my invention is not limitedto the precise arrangement and organization of these instrumentalities as herein shown and described. I g I Figure 1 represents a top plan view of a valve embodying my invention.

Fig. 2 represents a bottom plan view.

Fig. 3 represents a top plan view of the valve as the parts appear when the valve is open.

Fig. v'represents a burner supply pipe.

Fig. 5 represents a my device.

Fig. 6 represents a section on line 66 Fig. 1.

Fig. 7 represents a top plMlVli-BW of the air valve, in detached position.

8 represents a top plan v1ew of another embodiment of my inventlon.

top plan view of the horizontal section of Fig. 9 represents a top plan view of another embodiment of my invention. i

F g. 10 represents a section on line 1010 of Fig. 8. 7

Similar numerals of reference indicate corresponding parts in the figures.

Referring to the drawings 1 designates the fuel manifold which may be of any desired construction, and to this manifold isconnected in any conventional manner the fuel valve 2 which consists of a casing 3 having a passage 4 through it which. is controlled by a fuel cock 5 having a passage 6. 7 designates a cap in threaded engagement with the casing 3 and provided with a port 8. The foregoing parts may be of any desired or conventional construct1on. I

9 designates the mixer casing which is integral with or connected to the pipe 10 leading to the burner 11. The mixer casing is bifurcated or in other words terminates in a U-shaped chamber 12, the top wall of which forms a seat 13 and a curved guide flange 14. The seat is provided with oppositely disposed curved ports 15. 16 designates the mixer cap orair valve which is provided with a slot l7 through which extends a fastening device 18 illustrated as a screw passing through-the slot 17 and in threaded engagementwith the seat 13. The valve 16 is also provided with oppositely disposed ports 19 which are adapted to be brought into register with the ports 15'; The ports 15'and 19, as shown, are in the form of curved slots. The air valve 16 is provided with a centrally located aperture 20 which is of sufli'cient cross sectional area to receive the free end of the fuel-cock 5. The upper face of the air valve 16 is provided with a rib 21 which is extended, if desired, beyond the edge of the valve 16 to form a grasping handle. The fuel cock 5 is connected inany desired manner with the air valve 16 to move in; unison with it. As shown in Figs. 1 and 3, the screw 22 passes through the grasping handle 23 of the gas cock and through the rib 21 and is in threaded engagement with the boss or ball at the end of the gas cock. If desired, the handle 28 of the gas cook may be dispensed with and the air valve and gas cook connected by a screw 24, (see Fig. 9), which passes through the rib 21 and engages the cock 5. The mixer casing may, if desired, be proby a set screw 31 so as not to .move when operating the fuel valve. The fuel valve 111 this embodiment is not connected with the air valve as described in connection with the other figures, so that they would not move in unison.

It Will be apparent that when the fuel valve seen in Figs. 1 to 7 inclusive and Fig. 9 is'opened or closed, the air valve is proportionally actuated so that a simultaneous adjustment of the fuel and air inlets is effected and a uniform mixture obtained at any degree of opening of the fuel valve.

The mixer chamber casing is apertured as at 32 so that the fuel valve can extend into such aperture. It will thus be seen that the fuel introduced commingles with the converging streams of air entering the mixer chamber through the air inlets, These air inlets are preferably located at the top of the mixer casing.

It will now be apparent that I have devised a novel and useful combined fuel and air valve, which embodies the features of advantage enumerated as desirable in the statement of the invention and the above description, and while I have, in the present instance, shown and described typical embodiments of it which will give in practice satisfactory and reliable results, itis to be understood that these'embodimentsare susceptible of modification in various particulars without departing from the spirit or scope of the invention or sacrificing any of its advantages.

Having thus described my invention, what I claim as new and desire to secure by'Letters Patent, is:,

1. In a combined fuel and air valve mechanism, a mixer casing having diverging branches with air inlet ports through their top walls,a rotatable air valve on said casing and controlling said ports, a fuel valve discharging into said, casing between said branches, and a screw connecting said air valve and fuel valve to cause them to move in unison.

2. In a combined fuel and air valve mechanism, a mixer casing having a U-shaped chamber and provided with a1r 1nlet ports communicating with said chamber, an air valve comprising a disk rotatable on said casing and provided with ports to register with the air inlet ports, and a fuel valve located between the branches of said U-shaped chamber and discharging centrally into said chamber. I

3. In a combined fuel'and air valve mechanism, a mixer casing having a u shaped chamber and provided with air inlet ports communicating with said chamber, an air valve comprising a disk rotatable on said casing and provided with ports to register with the air inlet ports, and a fuel valve located between the branches of said U- shaped chamber and discharging centrally into said chamber, said fuel and air valve being connected to move in unison.

4. In a combined fuel and air valve mechanism, a mixer casing having a chamber provided with diverging branches and .provided with a seat and a curved'guide in proximity to said seat, an air valvecompris ing a disk mounted on said seat and pro vided with ports, said branches having air inlet ports to register with the ports in the air valve, said air valve having a slot therein, a fastening device passingthrough I said slot and connected with said casing to limit the rotation of said air valve, and a fuel valve discharging into said mixing chamber and connected to said air valve, whereby the opening and closing ofsaid air inlet ports is proportional .to the opening and closing of said fuel valve.

5; In a combined fuel and air valve mechanism, a mixer casing having'air inlet ports, an air valve rotatable on said casing and comprising a disk having ports to register with said air inlet ports, said disk having 100 a rib on its outer faceforming agrasping handle, and a fuel valve discharging. into said casing and connected with said rib to causesaid valve to move with said fuel valve.

GEORGE 'F. BIB'B. Witnesses:

VVILLIAM K. CLEMENTS, ARNOLD HILLMAN.

Copies of'this' patent may be obtained for five cents each, by addressing the Commissioner of Patents,

' Washington, D. 0. 

